Topic summary
Parousia

Extracted from the Wikipedia article Second Coming.
Terminology
The Greek New Testament uses the Greek term parousia (παρουσία, meaning "arrival", "coming", or "presence") 24 times, seventeen of them concerning Christ. However, parousia has the distinct reference to a period of time rather than an instant in time. At Matthew 24:37, the word parousia is used to clearly describe the period of time in which Noah lived. The Greek word eleusis, which means "coming", is not interchangeable with parousia. So this parousia or "presence" would be unique and distinct from anything that had occurred before. The word is also used six times referring to individuals (Stephanas, Fortunatus and Achaicus, Titus, and Paul the Apostle) and once referring to the "coming of the lawless one".